Any interest in GC input buffer and power supply regulator pcb's?

Sheldon · 5th June 2004, 01:05 AM

I haven't been on this forum long but I can tell already, that if a good project exists, the compulsion to make it better is right behind. With that in mind, how about the hi-end GC with input buffer and ps regulation? I know I'm gonna do one like that. I don't have them, but Pedja has some pretty spiffy designs that he is willing to let the DIY folks use for a group order type project like Brian's.

Brian said he might (and I'll stress might) be able to help with the pcb design, and Pedja might also be willing. But the project needs someone to organize a group specification/buy ala Brian GT. Any interest/takers?

Sheldon

motherone · 5th June 2004, 02:36 AM

Well, I'm too much of a noobie to take on a group buy... But I am interested in this project! I had been thinking after reading the other regulated power supply thread that it would be pretty dang nifty if someone put out a matching red PCB for the power supply regulators!

agent.5 · 5th June 2004, 04:29 AM

I am interested. Are you planning on using a tube as buffer?

Seth Hensel · 5th June 2004, 11:56 AM

Just found the 2SK170BLs in Canada. I'd be up for a pair of boards.

yuval · 5th June 2004, 01:09 PM

Count me in.

Ed LaFontaine · 5th June 2004, 05:27 PM

Hi Sheldon,
I'm subscribed and watching with interest.

Sheldon · 5th June 2004, 07:21 PM

Quote:

Originally posted by agent.5
I am interested. Are you planning on using a tube as buffer?

I'm thinking of one myself. The JFET circuit Pedja has described looks like it would be pretty easy to convert to low voltage tube use ala Rasmussen's JTLi, though I don't know enough to supply the details. My guess is that most here would want the JFET version, but the same board might be useful for either.

Sheldon

jhead · 6th June 2004, 04:55 AM

Anyone up to drawing up a circuit schmatic to gain ways to implement

tbla · 6th June 2004, 09:00 AM

i think it will be wise not to include a buffer on the amp pcb - many people will use several amps for biamp or triamping there system, and therefor only need one buffer........imho...

tbla · 6th June 2004, 09:10 AM

i send sheldon a ready pcb file and he is "authorized" to use it as he likes.
it is made for lm3886 and the regs are lt1083 with trimpots for V adj. there is also a dc - null trimpot. the two full bridges are made for IR hfa08tb60 and likes. and there is space for one cerafine 10000uF/63 / channel.
as you see, its a complete amplifier pcb - just ad a transformer and go.......

5th June 2004, 01:05 AM	#1
Sheldon diyAudio Member Join Date: Dec 2003 Location: San Diego	Any interest in GC input buffer and power supply regulator pcb's? I haven't been on this forum long but I can tell already, that if a good project exists, the compulsion to make it better is right behind. With that in mind, how about the hi-end GC with input buffer and ps regulation? I know I'm gonna do one like that. I don't have them, but Pedja has some pretty spiffy designs that he is willing to let the DIY folks use for a group order type project like Brian's. Brian said he might (and I'll stress might) be able to help with the pcb design, and Pedja might also be willing. But the project needs someone to organize a group specification/buy ala Brian GT. Any interest/takers? Sheldon

5th June 2004, 11:56 AM	#4
Seth Hensel diyAudio Member Join Date: Dec 2003 Location: Tampa	Yes I'm Interested Just found the 2SK170BLs in Canada. I'd be up for a pair of boards.

5th June 2004, 05:27 PM	#6
Ed LaFontaine ...truth seeker... diyAudio Member Join Date: Feb 2004 Location: where the Appalachians rise from the Blue Grass	The list grows Hi Sheldon, I'm subscribed and watching with interest. __________________ ...call me Ed...Special Ed... http://www.diyaudio.com/forums/swap-meet/119852-enabl-kit.html http://www.diyaudio.com/forums/swap-...ml#post2361098

6th June 2004, 04:55 AM	#8
jhead diyAudio Member Join Date: Feb 2004 Location: orange county calif.	Schmatics Anyone up to drawing up a circuit schmatic to gain ways to implement __________________ Jack Head

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5th June 2004, 02:36 AM	#2
motherone diyAudio Member Join Date: Apr 2003 Location: Seattle	Well, I'm too much of a noobie to take on a group buy... But I am interested in this project! I had been thinking after reading the other regulated power supply thread that it would be pretty dang nifty if someone put out a matching red PCB for the power supply regulators!

5th June 2004, 04:29 AM	#3
agent.5 diyAudio Member Join Date: Aug 2003 Location: San Francisco, CA	I am interested. Are you planning on using a tube as buffer?

5th June 2004, 01:09 PM	#5
yuval diyAudio Member Join Date: Oct 2002 Location: israel	Count me in.

6th June 2004, 09:00 AM	#9
tbla diyAudio Member Join Date: Jul 2002 Location: denmark	i think it will be wise not to include a buffer on the amp pcb - many people will use several amps for biamp or triamping there system, and therefor only need one buffer........imho...

6th June 2004, 09:10 AM	#10
tbla diyAudio Member Join Date: Jul 2002 Location: denmark	i send sheldon a ready pcb file and he is "authorized" to use it as he likes. it is made for lm3886 and the regs are lt1083 with trimpots for V adj. there is also a dc - null trimpot. the two full bridges are made for IR hfa08tb60 and likes. and there is space for one cerafine 10000uF/63 / channel. as you see, its a complete amplifier pcb - just ad a transformer and go.......

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